Chinese Journal of Applied Chemistry ›› 2026, Vol. 43 ›› Issue (3): 360-372.DOI: 10.19894/j.issn.1000-0518.250226

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Effects of Alloy Elements (Sn, Sb, Si, Mn) on the Electrochemical Performance of Al-Ga-In-M Anode for the Seawater Oxygen-Dissolved Battery

Shuang LIU1,2, Ti-Gang DUAN2(), Li MA2, Ruo-Can LI2,3, Hou-Ran WU2, Hai-Bing ZHANG2, Zhen LI2   

  1. 1.Chemical Engineering College,Inner Mongolia University of Technology,Hohhot 010051,China
    2.National Key Laboratory of Marine Corrosion and Protection,Luoyang Ship Material Research Institute,Qingdao 266237,China
    3.Yantai Research Institute,Harbin Engineering University,Yantai 264000,China
  • Received:2025-06-03 Accepted:2025-11-19 Published:2026-03-01 Online:2026-03-26
  • Contact: Ti-Gang DUAN
  • About author:duantigang@sunrui.net
  • Supported by:
    the National Key R&D Program of China(2022YFB3808800)

Abstract:

The Al-Ga-In-M quaternary aluminum alloy anode was obtained by modifying the Al-Ga-In aluminum alloy with alloy elements of Sn, Sb, Si and Mn. The properties of Al-Ga-In-M quaternary aluminum alloy were studied by X-ray diffraction (XRD), scanning electron microscope (SEM), electrochemical experiments, and battery discharge tests. The results show that Sn and Sb can improve the electrochemical activity of Al-Ga-In aluminum alloy. Furthermore, Sn displays the most significant increase for the aluminum anode based on the “dissolution and redeposition” mechanism, but serious local corrosion occurs, resulting in a high self-corrosion rate. On the other hand, Si and Mn reduce the electrochemical activity of Al-Ga-In aluminum alloy and show good self-corrosion resistance. When combining the anode with 20% Pt-C composite cathode, Al-Ga-In-Sn alloy has the highest discharge voltage (1.5 V at 0.5 mA/cm2 constant current density), Al-Ga-In-Si alloy anode exhibits excellent discharge capacity (2941 A·h/kg), and Al-Ga-In-Sb alloy anodes have the highest energy density (1447.4 Wh/kg).

Key words: Al-Ga-In-M (M=Sn、Sb、Si、Mn) anode, Alloy element modification, Seawater oxygen-dissolved battery, Electrochemical performance

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